CH218078A - Process for the production of a new azo dye. - Google Patents
Process for the production of a new azo dye.Info
- Publication number
- CH218078A CH218078A CH218078DA CH218078A CH 218078 A CH218078 A CH 218078A CH 218078D A CH218078D A CH 218078DA CH 218078 A CH218078 A CH 218078A
- Authority
- CH
- Switzerland
- Prior art keywords
- azo dye
- amino
- production
- new
- new azo
- Prior art date
Links
- 239000000987 azo dye Substances 0.000 title claims description 4
- 238000000034 method Methods 0.000 title claims description 3
- 239000000975 dye Substances 0.000 claims description 5
- 229940092714 benzenesulfonic acid Drugs 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 210000002268 wool Anatomy 0.000 claims description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims 1
- 229910052804 chromium Inorganic materials 0.000 claims 1
- 239000011651 chromium Substances 0.000 claims 1
- 239000000243 solution Substances 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 150000008049 diazo compounds Chemical class 0.000 description 1
- 125000000664 diazo group Chemical class [N-]=[N+]=[*] 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- -1 sodium chloride Chemical class 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B45/00—Complex metal compounds of azo dyes
- C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
- C09B45/14—Monoazo compounds
- C09B45/16—Monoazo compounds containing chromium
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Paper (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Credit Cards Or The Like (AREA)
Description
Verfahren zur Herstellung eines neuen Azofarbstoffes. Es wurde gefunden, dass man einen neuen Azofarbstoff erhält, wenn man die diazo- tierte 1-Oxy-2-amino-4-chlor-6-benzolsulfon- säure in alkalischem Medium mit der 3-Car- bonsäure-4-oxybenzolsulfaminoverbindung des 1-Amino-7-oxynaphthalins vereinigt.
Der neue Farbstoff stellt ein dunkles Pul ver dar, das sich in Wasser mit blauer Farbe löst und das Wolle aus saurem Bade in Bor deaux-Tönen färbt,. die durch Behandeln mit ehromabg ebenden Mitteln grünrngrau-e Töne. von vorzüglichen Echtheitseigernseha.ften geben. <I>Beispiel:</I> 223 Teile 1-Oxy-2-amino-4-chlor-6-benzol- sulfonsä.ure werden in 1500 Volumenteilen Wasser und 100 Volumenteilen 40%iger Na triumhydroxydlösung gelöst und mit 350 Volumenteilen Salzsäure (D - 1,15) ausge fällt.
Diese feine Suspension wird mit einer wässerigen Lösung von 70 Teilen Natrium nitrit innert etwa 1/2 Stunde versetzt und ge rührt, bis eine klare Lösung der Diazover- bindung entsteht.
Diese Diazolösung gibt man in eine wäs serige Lösung des Natriumsalzes von 365 Tei- len der 3-Carbonsäure-4-oxybenzolsulfamino- verbindung des 1-Amino-7-oxynaphthalins, die noch 215 Teile Natriumcarbonat enthält. Man rührt, bis die Kupplung beendet ist, fällt den Farbstoff durch Zugabe eines Salzes, wie zum Beispiel Natriumchlorid, aus. Er wird abfiltriert und mit einer gesättigten Natrium chloridlösung gewaschen und hernach ge trocknet.
Process for the production of a new azo dye. It has been found that a new azo dye is obtained if the diazotized 1-oxy-2-amino-4-chloro-6-benzenesulfonic acid is mixed with the 3-carboxylic acid-4-oxybenzenesulfamino compound of 1 in an alkaline medium -Amino-7-oxynaphthalene combined.
The new dye is a dark powder that dissolves in water with a blue color and dyes the wool from acid baths in Boreaux shades. the green-gray tones obtained by treating with honey-emitting agents. of excellent authenticity certificates. <I> Example: </I> 223 parts of 1-oxy-2-amino-4-chloro-6-benzenesulfonic acid are dissolved in 1500 parts by volume of water and 100 parts by volume of 40% sodium hydroxide solution and mixed with 350 parts by volume of hydrochloric acid ( D - 1.15) failed.
This fine suspension is mixed with an aqueous solution of 70 parts of sodium nitrite within about 1/2 hour and stirred until a clear solution of the diazo compound is formed.
This diazo solution is added to an aqueous solution of the sodium salt of 365 parts of the 3-carboxylic acid-4-oxybenzenesulfamino compound of 1-amino-7-oxynaphthalene which still contains 215 parts of sodium carbonate. The mixture is stirred until the coupling has ended, and the dye is precipitated by adding a salt, such as sodium chloride, for example. It is filtered off and washed with a saturated sodium chloride solution and then dried.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH218078T | 1940-11-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH218078A true CH218078A (en) | 1941-11-30 |
Family
ID=4450434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH218078D CH218078A (en) | 1940-11-21 | 1940-11-21 | Process for the production of a new azo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH218078A (en) |
-
1940
- 1940-11-21 CH CH218078D patent/CH218078A/en unknown
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